/Engine/Source/Runtime/MovieSceneTracks/Public/Sections/MovieScenePrimitiveMaterialSection.h
class UMovieScenePrimitiveMaterialSection : public [UMovieSceneSection](API\Runtime\MovieScene\UMovieSceneSection), public [IMovieSceneEntityProvider](API\Runtime\MovieScene\EntitySystem\IMovieSceneEntityProvider)
FMovieSceneObje...
MaterialChannel